Governance and permissions

I’ve got a team of 30 people (and adding more), all of them creating collections, sometimes publishing them (and sometimes publishing things that shouldn’t be published).
Now… even as an Admin, I can’t unpublish or delete a collection that wasn’t created by miself.

Which leaves me with the question… how I’m supposed to build some governance in Postman if I can’t manage Postman’s content?

Have I missed something?